Window construction



May 5; 1925.

1,536,457 H. SCHLESINGER ET AL WINDOW CONSTRUCTION Filil FeB. 9, 1924 \3 \F A g, INVENTOR fi emy ficfileszryer E 5x77224492 56mm? BY ATTOR EY Patented May 5, 1925.

UNITED rs'r OFFICE.

HENRY SCHLESINGER AND SAMUEL SIMONOVITZ, OF NEW YORK, N. Y.

WINIJOW CONSTRUCTION.

Application filed February 9, 1924. Serial No. 691,539.

To all whom it may concern: Be it known that we, HENRY Scnmasrncnn and SAMUEL Snuonovrrz, Citizens of the United States, and both residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements inWindow Constructions, of which the following is a specification, such as will enable those skilled in the ,1 art to which it appertains to make and use the same.

"This invention relates to window c0nstructions and particularly to the provision of a sash frame removably mounted in the framework of a window, whereby the sashes and the frame supporting and guiding said sashes may be removed as a unit if desired and further to the provision of a sash construction in which counterbalancing means is e1iminated,the sashes being held in predetermined positions under tension or friction, and further to the provision of means for locking the separate sashes in the frame therefor, in closed oropen positions; and the object of the invention is to provide a window structure of the class and for the purpose specified wherein the sashes may be readily moved intoopen and closed positions and retained in such positions by a lock or catch device, which will prevent the opening of the windows to a greater extent than set or governed by the lock device; and with these and other objects in view, the invention consists in a window structure, con structed as hereinafter described and claimed.

The invention is fully disclosed in the following specificatiomof which the accompanying drawing forms a part, in which the separate parts of ourimprovement are designated by suitable reference characters in each of the views, and in which:

' Fig. 1 is a sectional side view of a windowshowing our improved sash construction mounted therein.

Fig. 2 is a view similar to Fig. 1 but showing theopposite side of the sash construction. i v

Fig. 3 is a partial section on the line 3-3 of Fig. 1; and,

Fig. 4 is a of Fig. 2.

In the drawing, we have indicated at 5 the framework of a window opening, and the wall structure 6 of a building, and at 7 we t5 have shown our improved window sash frame which is substantially box-shaped in form but open at the front and back, and the inner or front side members 8 are extended to permit of the passage of screws 9through (5 the frame 5 in the sash frame 7 for retaining the separate frames together. Slidably mounted in the sash frame 7 are top andbottom window sashes 10 and 11, of the usual construction. y,

In practice, we secure to the opposite side partial section on the line faces of the top sash 10, racks 12 which operate in elongated apertures 13 formed in the sash frame 7 and secured to the opposite sides of the sash 11 are racks 14 which operate in apertures 15 in the frame 7 and one of each of the racks 12 and 14 are gear racks while the others have teeth suitable to engage pawls. At one side of the sash frame 7 and mounted in connection therewith by eye-brackets 16 is a shaft 17 located centrally of theside of the sash frame 7 and on which arerotatably mounted, two gears 18 and 19 held against free rotation by nuts 20, or springs or other frictional means may be eInployed if desired. The gear 18 meshes with the rack 12 at the correspondingside 0f the sash 10, while the gear 19 meshes with the rack 1% on the sash 11, and the gears 18 and 19 operate as counter-balancing means which permit of the opening and closing of the separate sashes but by reason of the friction provided will prevent the accidental dropping of the sashes as will be' apparent.

Mounted in connection with the opposite on sides of the frame 7 are two rotatable shafts 21 and 22, the inner ends of which protrude through the frame 7 and are provided with knurled heads 23. Secured to the inner ends of said shafts between bearing brackets 24 and 25 respectively are look members26 and 27 in the general shape of pawls. The pawl 26 is adapted to cooperate with the rack 12 of the sash 10 as clearly shown in Fig. 2 of the drawing, and the nose of this pawl is directed upwardly and is preferably weighted as shown at 26 to normally support the pawl in engagement with the rack 12. One of the bearing brackets 24; is provided with a projecting piece 28 to limit the outward and downward movement of the lock member 26 and thus retaining said lock member in proper position at all times. The lock member or pawl 27 or the nose thereof is directed downwardly and is adapted to mesh with the rack 14 on the sash 11, and this member is provided with a radially extended weighted portion 27 for retaining the member 27 normally in engagement with the rack 14. One of the bearing brackets 25 is provided with a projecting piece 29 which prevents the displacement of the member 27 as will be apparent.

From the foregoing, it will be understood that whenever desired, the entire sash frame 7, with the sashes or other parts mounted in connection therewith, may be removed as a unit from the window frame 5 by removing the screws 9 to permit of the passage of pieces of furniture or other objects through the window opening, or for the purpose of repairing or adjusting the several parts of our improved construction. In the use of the lock devices for retaining and locking the window in predetermined position, it will be understood that when the sashes 10 and 11 are both in closed positions, the lock members 26 and 27 engaging the racks 12 and 14 prevent the opening of said sashes.

If it is desired to open either the top or bottom sashes or both, the separate shafts 21 and 22 are rotated by means of the knurled heads 23 thereon to move the lock members 26 and 27 into inoperative position, and after the sashes have been properly adjusted, they may be again locked by simply releasing the heads 23 on the shafts 21, and the lock members will automatically drop by gravity into operative position. Vith the present construction, it will be apparent that if the top sash were open anumber of inches and locked in the open position, it would be possible to close the sash without actuating the lock 26 but impossible to further open the sash, the lock member 26 functioning to drop into the separate notches in the rack 12 as the sash 10 is moved upwardly. This operation is also true in the lowering of the bottom sash.

It will be understood, that while we have shown a sash frame of specific construction as well as means for frictionally retaining and locking the sashes in their several positions, that we are not necessarily limited in these respects, and various changes in and modifications of the construction herein shown and described may be made within the scope of the appended claims without departing from the spirit of our invention or sacrificing its advantages.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. A look device for window sashes, comprising racks secured to one side of the separate sashes, and 'manually controlled members cooperating directly with said racks for retaining the same against furthcr opening when in predetermined positions in the sash frame.

2. A look device for window sashes, comprising racks secured to one side of the separate sashes, manually controlled members cooperating directly with said racks for retaining the same against further opening when in predetermined positions in the sash frame, and means whereby said members are normally in engagement with said racks.

3. A look device for window sashes, comprising racks secured to one side of the separate sashes, manually controlled members cooperating directly with said racks for retaining the same against further opening when in predetermined positions in the sash frame, means whereby said members are normally in engagement with said racks, and means for preventing the accidental displacement of said members.

4. A look device for window sashes comprising racks secured to one side of the separate sashes, and the teeth of which project outwardly with reference to the sashes and into a chamber formed in the sash frame, pawls mounted within said chamber and normally in engagement with said racks to normally lock the same against movement, and means projecting inwardly through the sash frame for moving said pawls out of engagement with said racks.

5. A sash construction of the class described comprising a sash frame removably mounted in a window frame and provided in the side walls thereof with chambers, sashes movably mounted in said sash frame, racks secured to the side rails of the sashes and operating in apertures in the sash frame, the teeth of said racks opening into said chambers, the racks opening into one of said chambers being provided with gear teeth, gears mounted in said chambers and cooperating with said racks, and the other racks being provided with racket teeth, and pawls mounted in the other chamber and cooperating with the last named racks and adapted to normally retain the sashes against movement.

6. A sash construction of the class described comprising a sash frame removably mounted in a window frame and provided in the side walls thereof with chambers, sashes movably mounted in said sash frame, racks secured to the side rails of the sashes and operating in apertures in the sash frame, the teeth of said racks opening into said chambers, the racks opening into one of said chambers being provided with gear teeth, gears mounted in said chambers and cooperating with said racks, the other racks being provided with racket teeth, 'pawls mounted in the other chamber and cooperating with the last named racks and adapted to normally retain the sashes against movement, and means projected inwardly through the sash frames for moving said pawls into inoperative position.

In testimony that we claim the foregoing as our invention we have signed our names this 6th day of F eb., 1924.

HENRY SCHLESINGER. SAMUEL SIMONOVITZ. 

